8685168671 has 4 divisors (see below), whose sum is σ = 8849039832. Its totient is φ = 8521297512.

The previous prime is 8685168659. The next prime is 8685168673. The reversal of 8685168671 is 1768615868.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8685168671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8685168673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81935501 + ... + 81935606.

It is an arithmetic number, because the mean of its divisors is an integer number (2212259958).

Almost surely, 2^8685168671 is an apocalyptic number.

8685168671 is a deficient number, since it is larger than the sum of its proper divisors (163871161).

8685168671 is a wasteful number, since it uses less digits than its factorization.

8685168671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163871160.

The product of its digits is 3870720, while the sum is 56.

The square root of 8685168671 is about 93194.2523495950. The cubic root of 8685168671 is about 2055.5407256089.

The spelling of 8685168671 in words is "eight billion, six hundred eighty-five million, one hundred sixty-eight thousand, six hundred seventy-one".